HTTP response header

The Server response-header field contains information about the software used by the web server to handle the request.

Header usage statistics

Server response header information and usage statistics.

Websites using header Server 9,922,192
Percentage of websites that use Server header 86.83%
Total discovered header values 34,249
Header uses directives No
Header values are unique or random No
Most popular in the country United States of America

Connected technologies

Technologies that utilize the header

Apache, category Web Servers, total 3,844,377 websites
Akamai, category Content Delivery Networks, total 111,137 websites
Amazon Cloudfront, category Content Delivery Networks, total 110,412 websites
Amazon S3, category Miscellaneous, total 67,964 websites
Amazon ELB, category Load Balancer, total 39,195 websites
Amazon EC2, category Web Servers, total 33,759 websites
Akka HTTP, category Web Application Frameworks, total 330 websites
AOLserver, category Web Servers, total 93 websites
Airee, category Content Delivery Networks, total 25 websites
Allegro RomPager, category Web Servers, total 2 websites

Distribution by websites popularity

Server detection in the top websites by popularity

Top 10k sites 12,263 websites
Top 100k sites 111,840 websites
Top 1m sites 1,051,387 websites

Websites utilizing Server

List of websites that use Server header

Domain Country Rank Contacts United States of America 1 United States of America 3 United States of America 4 United States of America 5 United States of America 14,442 United States of America 23,353
See full domain list

Geographical Distribution

Header usage distribution by websites across the globe.

Common header values

List of top common Server header values

Header value Value prevalence
Apache 28.55%
nginx 20.39%
cloudflare 8.68%
Squarespace 3.46%
openresty 3.41%
LiteSpeed 2.32%
Microsoft-IIS/8.5 2.28%
nginx/1.16.1 2.28%
Microsoft-IIS/10.0 1.48%
GSE 1.11%
Apache/2 1.10%
Microsoft-IIS/7.5 0.74%
lapis 0.73%
AmazonS3 0.65%
Apache/2.4.25 (Debian) 0.57%
nginx/1.19.0 0.56% 0.56%
Apache/2.4.29 (Ubuntu) 0.56%
Apache/2.4.18 (Ubuntu) 0.54%
nginx/1.18.0 0.49%